Answers
correct answer is option 2.
We know that,
range = vo² sin2 Θ /g
Where:
vo = launch velocity
Θ = launch angle; sin2 Θ = sin(2 * Θ)
g = acceleration of gravity
thus, Range is directly proportional to sin(2 * Θ) .
also, sin(180-Θ) = sin(Θ). So, out of given options, considering twice of their angles, & checking for same value of sin(2 * Θ) , we get correct ans. as opt. 2. because :
2* (65 degree) = {180 - 2*(25 degree)} = 150 degree.
about 11 years ago
Mohan
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